ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%5BC%40%5D1%28c2ccccc2Cl%29CCCCC1%3DO/file?format=sdf&get3d=True  -- CN%5BC%40%5D1%28c2ccccc2Cl%29CCCCC1%3DO could not be loaded.